86609143 has 2 divisors, whose sum is σ = 86609144. Its totient is φ = 86609142.

The previous prime is 86609077. The next prime is 86609147. The reversal of 86609143 is 34190668.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86609143 is a prime.

It is a super-2 number, since 2×86609143² = 15002287302388898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86609147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43304571 + 43304572.

It is an arithmetic number, because the mean of its divisors is an integer number (43304572).

Almost surely, 2^86609143 is an apocalyptic number.

86609143 is a deficient number, since it is larger than the sum of its proper divisors (1).

86609143 is an equidigital number, since it uses as much as digits as its factorization.

86609143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 86609143 is about 9306.4033331895. The cubic root of 86609143 is about 442.4402004585.

The spelling of 86609143 in words is "eighty-six million, six hundred nine thousand, one hundred forty-three".